Finding the Third Proportional to 339.50 and 385
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Solution
The third proportional to 339.50 and 385 is: 436.60
Step by Step Solution
- Step 1: Write the proportion equation
339.50 : 385 = 385 : x - Step 2: Convert to fraction form
339.50/385 = 385/x - Step 3: Cross multiply
339.50x = 385 × 385 - Step 4: Simplify right side
339.50x = 148,225 - Step 5: Solve for x
x = 148,225/339.50 - Step 6: Final answer
x = 436.60
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These problems maintain the same ratio (1.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.